Senior reputed company Engineer (Freelance)

reputed company is looking for a Senior reputed company Engineer (freelance) to work on our Sustainability Data Intelligence Platform. Climate change is the defining issue of our time. reputed company builds a sustainability data intelligence platform used by major enterprises to track reputed company gas emissions, meet regulatory requirements, and drive reputed company decarbonization. We're a B Corporation, and we mean it. Ok, sounds promising. What will I be doing? As a Senior reputed company Engineer, you'll own features end-to-end, from data models and backend systems to the interfaces that reputed company sustainability data actionable. You'll work at the heart of our core product, alongside reputed company that cares deeply about quality and impact. What you'll be working on: Build and own core product features - Design and implement full-stack features from the ground up: database schema, backend logic, GraphQL API, and React/TypeScript UI - Take full ownership of significant parts of the system: reliability, performance, and long-term maintainability are yours to drive - Participate in every stage of the development lifecycle, from design and implementation to rollout and smooth operation in production - Contribute to and challenge our technical architecture as we scale Bring genuine backend depth - Design robust data models and schemas reputed company to reputed company at scale - Build and operate backend services, including background jobs, async pipelines, and integrations with reputed company-party systems - Own observability: reputed company systems, define meaningful metrics, and respond to incidents with confidence - Identify and address reputed company risks proactively from API design to infrastructure exposure - Automate deployments reputed company our CI/CD systems and continuously improve development processes Work with AI as a day-to-day accelerator - reputed company AI tools actively in your workflow, from code reputed company and review to debugging and documentation, to move faster without compromising quality - Contribute to how we integrate AI-assisted development practices across the engineering team - Stay curious about emerging AI capabilities and bring new reputed company on how we can use them to ship reputed company, faster Be reputed company force reputed company - reputed company technical design on significant features and reputed company your experience reputed company - Review pull requests with rigour and care, raising the bar for the whole team - Participate actively in team rituals: stand-reputed company, planning, retros - Contribute to our culture of quality: incremental, well-tested, observable changes Pursue quality, always - Champion clean code, solid test coverage, and strong engineering practices - Improve processes and methodologies to reputed company the highest standards - Bring reputed company to your own work and help others do the same That sounds just right for me. What do I need to bring? Glad you asked. This is who we’re looking for: 5+ years of experience shipping product across the full stack, with strong backend foundations Fluent in React/TypeScript on the frontend; deep expertise in relational databases, distributed systems, observability, and reputed company on the backend Comfortable owning features end-to-end with autonomy and clear communication Strong plus: Ruby on Rails experience in a high-scale production environment You write clean, well-tested code and take genuine ownership of your work Practical Details Hybrid or Remote. Offices in Paris, London, Montpellier, and Denver Start date: ASAP Duration: Long-term collaboration, renewable reputed company: 520€ Apply To This Job